She is deeply in love with him.

Tears were continuously flowing from her eyes.

The surface of the lake was rippling.

The steepest descent method is one way to solve optimization problems.

Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

The Riemann sum is a method for approximately calculating the integral of a function.

He calls me by my first name.

In this area, we value old customs and traditions.

Ritsuo is my best friend.

His poetry has a beautiful meter.